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(No Model.) 2 Sheets-Sheet 2 R. TURNER, R. G. KIRBY & 0, L. WHITE.-

PUMP.

No. 582,561. Patented Mayll, 1897.

fizyeniomr' mi fi' Moss: 1?. TURNER.

ROBERT G. Irma). M Camus: L. W/l/TE.

UNITED STATES PATENT OFFICE.

MOSES R. TURNER, ROBERT G. KIRBY, AND CHARLES L. WHITE, OF GREENS- BURG,INDIANA; SAID TURNER AND KIRBY ASSIGNORS TO SAID IVHITE.

PUMP.

SPECIFICATION forming part of Letters Patent NO. 582,561, dated May 1 1,1897.

Application filed June 18, 1896. Serial No. 596,013. (No model.)

To an whom it may concern.-

Be it known that we, MosEs R. TURNER, ROBERT G. KIRBY, and OHARLEs L.WHITE, citizens of the United States, residing at Greensburg, in thecounty of Decatur and State of Indiana, have invented certain new anduseful Improvements in Pumps; and we do declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to theletters of reference marked thereon, which form a part of thisspecification.

Our invention relates to that class of pumps which have for their objectthe elevating of water or other liquids; and it consists of a peculiarcombination and arrangement of cylinders, pistons, and other deviceswhereby a double-acting easy-working pump is produced, as will be morefully described hereinafter.

The object of our invention is to overcome the weight of the liquid tobe lifted by providing a pump in which are two columns of liquid ofapproximately equal weight, one constantly balancing the other, wherebythe force expended in operating the pump is reduced to the minimum. Theabove object is attained in our invention, which is of simple design,cheaply manufactured, and is durable and economical in use.

Referring to the drawings, Figure l represents a central verticalsectional view of the,

pump, parts being broken out to shorten the illustration, the lever andconnections being a side view; and Fig. 2 is a central verticalsectional view of upper part of one cylinder and connecting parts.

In the drawings, N N designate duplicate cylinders; O, a base connectingthe lower end of the cylinders; M M, the upper cylinderheads; J J,pistons; E E, discharge-pipes; A, the pump-standard, having chambers BB; O, a lever operating the pistons by means of rods D D and connectinghollow plungers G G.

F F are tubes in which the hollow plungers work.

In constructing our pump the cylinders N N are preferably made oftubing, either of brass or other metal, and have screw-threads cut onthe outside of the lower ends, similar threads being cut on the insideof the upper ends to receive the heads M M, although in some cases theheads and base may be suitably attached by other means. The base 0 iscast and is provided with suitable threaded openings into which thecylinders are screwed, and, being hollow, provides a clear channelthrough it from the lower end of one cylinder to the lower end of theother.

The upper cylinder-heads M M are provided with inlet-openings K K, whichare covered at the inside of the head by check-valves L L. At theoutside the heads each have an an- 6 nularflange M, having screw-threadsinside and outside, to which are screwed the tubes F F anddischarge-pipes E E, the upper ends of the latter being screwed to thebottom of the standard A and opening into the cham- 7o bers B B. Thelatter are connected by a channel b, and one or both chambers may have asuitable discharge-spout. The heads M have a circular central opening.

It will be understood that the dischargepipes E E are composed ofordinary well-piping which is rough at the inside, and we use the tubeF,which is preferably made of smooth brass, to provide a smooth and truesurface for the packing 1" to work against, and these tubes areessentially a part of the cylinders, complete and ready to be attachedto the ordinary discharge-pipes.

The pistons J J are composed of outside plates R R and a center plate S,between which are cup-leathers R R, the leathers and plates having eacha central hole through which passes the piston-rod I, having a nut i onthe end, securing all together. The upper end of the rod I has a hollowportion m and is provided with outside screw-threads. The hollow portionhas perforations n to permit liquid to enter from the outside. To theupper end of the rod I is a sleeve H, attached by means of screw-threadsat the inside of the 5 end, the upper end being likewise provided withthreads to which is screwed the tube G. The sleeve has a valve-seat e,on top of which is a check-valve h.

Near the top of the tube G is a flange g, and

at the end of the tube are outside screwthreads over which is screwed acap I, having at two sides a series of perforations a. The lower end ofthe cap presses against a cup-leather a, securing it against the flangeg. The cap P is attached to the rod D.

At the top of the standard A the lever C is mounted and supported by apin a. The rods D D are suitably connected to the lever by means of pins(1 d and pass through suitable packing-boxes f f and chambers B B anddown through the discharge-pipes E E.

In adapting our pump for use in driven wells of small diameter theposition of the cylinders with relation to each other may be suitablychanged without affecting their efficiency, as one maybe placed abovethe other close to the discharge-pipe of the other cylinder, the bottomsof the cylinders being suitably connected. It will be understood thatthe cylinders are to be submerged, the pipes E E and rods D D being madeof suitable length to connect the upper and lower operative parts.

In practical operation one piston ascends while the other descends. Thedescending piston draws the liquid into the upper part of the cylinderthrough the inlet-openings K. The space below each piston and throughthe base is constantly of the same area and may contain either air orliquid. As the piston descends the weight of the column of liquid aboveis upon the check-valve 7L and cupleather 0', thus assisting the otherpiston to ascend by means of the connection through the base, and thelever at the top connecting the two rods D D. After the piston hasreached the lower end of the cylinder and begins to ascend the valves Lclose, the pres sure forces open the check-valve h, and the liquidpasses upward through the openings 91, plunger G, perforations u, andpipe E, discharging from the spout near top of standard. This actiontakes place in the other cylinder during its stroke, the two producing acontinuous flow of liquid.

Having described our invention, what we claim, and desire to secure byLetters Patent, 1s

1.- In a pump the combination with a pair of cylinders rigidly connectedat their lower ends to a suitable base having a passage or ducttherethrough connecting the said lower ends, of the cylinder-headsprovided with inlet-openings and check-valves seated at the inside ofsaid head over said openings, each of said heads having a centralopening and an outside annular flange provided with screw-threads insideand outside; a standard having two connected chambers and a suitabledischarge-spou t, the bottom of said standard being connected bydischarge-pipes to the upper heads of said cylinders; a packed pistonworking in each of said cylinders, a tube connected to each of saidupper cylinderworking in each of said tubes, each of said plungers beingattached at its lower end to one of said pistons and having an internalcheck-valve near its lower end and perforations below said valve throughthe walls of said plunger; the cup-packin g attached as shown at theupper part of said plunger thereto between the outside thereof and theinside of said tube; a perforated cap secured to the upper end of eachof said plungers and each connected to a suitable rod, the upper ends ofwhich are connected to a suitable lever supported upon said standard,substantially as .and for the purposes shown and described.

2. I11 a pump, the combination of the cylinders, the base connecting thelower ends thereof, the heads attached to the upper ends of saidcylinders, the tubes attached-at the lower end thereof to said heads,the pistons working in said cylinders, the hollow rod or plungerattached to each of said pistons, said plungers having each an internalcheck-valve situated near the lower end thereof and perforations throughthe walls thereof between said valve and said piston, the perforated capattached to the upper end of said plungers, suitable packing near saidcap between said plunger and said tube, the discharge-pipes attached attheir lower ends to said cylinderheads and incasing said tubes, thestandard having two connecting-chambers and connected to saiddischarge-pipes, and means whereby said plungers and pistons may beoperated, substantially as shown and described, for the purposes setforth.

3. In a pump, the combination with a pair of cylinders andconnecting-base providing a duct between the lower ends of saidcylinders, of the standard A having the chambers 13 B andconnecting-channel Z); the head socured to the top of each of saidcylinders and provided with a central opening and suitable check valves;the pipes connecting said standard and said cylinder-heads; the smoothtube secured to each of said heads and extending upward into each ofsaid pipes; the pistons in said cylinders; the hollow rods connectingsaid pistons and having the checkvalve and perforations at the lowerendthereof; packing between said tube and said hollow rod secured near theupper end thereof; and a pair of suitable rods connecting said hollowportions with means situated at the top of a well whereby said rods maybe operated, substantially as shown and described.

4. In a pump, the combination of the cylinders; the connecting-base O;the heads M attached to the upper ends of said cylinders and each havinga central opening therethrough and the inlets K and valves L, and theannular flange M provided with internal and external screw-threads; thetubes F connected to said internal screws; the pipes E connected to saidexternal screw-threads; the standard connected to the upper end of saidpipes; the pistons in said cylinders; the piston-rods I attached to saidpistons and provided with the hollow portion m having the In testimonywhereof We affix our signa- 1o perforations n; the sleeves H having thetures in presence of two Witnesses.

check-valve h and attached to said hollow rod; the tube or plunger Gattached to said sleeve and having at the upper end the packing a"; thecaps P secured to the upper end of said plungers; With means wherebysaid plungers and pistons may be operated, substantially as shown anddescribed.

MOSES R. TURNER. ROBERT G. KIRBY. CHARLES L. WVHITE.

Witnesses JAMES A. LUTHER, ROBERT ST. JOHN.

